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slub: Allow removal of slab caches during boot

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If a slab cache is removed before we have setup sysfs then simply skip over
the sysfs handling.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Roland Dreier <rdreier@cisco.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
This commit is contained in:
Christoph Lameter 2010-07-09 14:07:13 -05:00 • committed by Pekka Enberg
commit f5b801ac38
1 changed files with 7 additions and 0 deletions
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7
mm/slub.c
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@ -4507,6 +4507,13 @@ static int sysfs_slab_add(struct kmem_cache *s)
static void sysfs_slab_remove(struct kmem_cache *s) static void sysfs_slab_remove(struct kmem_cache *s)
{ {
if (slab_state < SYSFS)
/*
* Sysfs has not been setup yet so no need to remove the
* cache from sysfs.
*/
return;
kobject_uevent(&s->kobj, KOBJ_REMOVE); kobject_uevent(&s->kobj, KOBJ_REMOVE);
kobject_del(&s->kobj); kobject_del(&s->kobj);
kobject_put(&s->kobj); kobject_put(&s->kobj);